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reference:lua_smtp_server_script [2013/06/03 09:22] – [SMTP Server Lua Scripting] paulreference:lua_smtp_server_script [2024/05/01 14:12] (current) – [ProcessMessage()] paul
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 ======SMTP Server Lua Scripting====== ======SMTP Server Lua Scripting======
  
-The SMTP Server [[http://wiki.pscs.co.uk/reference;lua_scripting|Lua Script]] is called SMTPSVR.LUA and should be placed in the VPOP3 folder. This script is called whenever an instance of the VPOP3 SMTP server is launched - ie whenever someone opens a connection to port 25 on the VPOP3 server to send it a message, whether from a local user or an incoming SMTP message.+The SMTP Server [[http://wiki.pscs.co.uk/reference;lua_scripting|Lua Script]] is called SMTPSVR.LUA and can be edited from the Settings -> Scripts page in the VPOP3 settings. This script is called whenever an instance of the VPOP3 SMTP server is launched - ie whenever someone opens a connection to port 25 on the VPOP3 server to send it a message, whether from a local user or an incoming SMTP message.
  
 Each SMTP server instance has its own instance of the SMTPSVR.LUA script. No threading conflicts will occur. Each SMTP server instance has its own instance of the SMTPSVR.LUA script. No threading conflicts will occur.
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   * **EndMessage()** - (v5+) called when the message terminator . has been received at the end of a message   * **EndMessage()** - (v5+) called when the message terminator . has been received at the end of a message
   * **CheckRecipients()** - (v6.3+ Enterprise Only) called at the end of a message to check if recipients are allowed   * **CheckRecipients()** - (v6.3+ Enterprise Only) called at the end of a message to check if recipients are allowed
 +  * **MonitorBcc()** - (v6.3+ Enterprise Only) called to customise monitoring of messages with BCCs
   * **LogRecipients()** - (v6.3+ Enterprise Only) called at the end of a message to allow customised logging of recipients   * **LogRecipients()** - (v6.3+ Enterprise Only) called at the end of a message to allow customised logging of recipients
   * **LogRecipientsBlocked()** - (v6.3+ Enterprise Only) called at the end of a message if recipients have been blocked to allow customised logging of recipients   * **LogRecipientsBlocked()** - (v6.3+ Enterprise Only) called at the end of a message if recipients have been blocked to allow customised logging of recipients
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   * **AllowedUsers** - (IN/OUT) - string - List of allowed usernames (separated by spaces) if there are any username restrictions for this client IP address   * **AllowedUsers** - (IN/OUT) - string - List of allowed usernames (separated by spaces) if there are any username restrictions for this client IP address
  
 +===V5 and later===
 +  * **AuthenticatedUser** - (IN) - string - username of authenticated sender (using SMTP or POP3-then-SMTP authentication)
 +  * **SMTPAuthenticatedUser** - (IN) - string - username of authenticated sender (using SMTP authentication only)
 +  * **ForceDisconnect** - (IN/OUT) - boolean - drop the connection as soon as possible
 +  * **UseBATV** - (IN/OUT) - boolean - use [[http://en.wikipedia.org/wiki/Bounce_Address_Tag_Validation|BATV]] (Bounce Address Tag Validation)
 +
 +===V6 and later===
 +  * **MaxRecipientsPerLocalMessage** - (IN/OUT) - number - maximum number of recipients allowed for locally sent messages
 +  * **MaxRecipientsPerIncomingMessage** -  (IN/OUT) - number - maximum number of recipients allowed for incoming messages
 +  * **MaxMessagesPerLocalSession** - (IN/OUT) - number - maximum number of messages allowed per local session
 +  * **MaxLineLength** - (IN/OUT) - number - maximum line length
 +  * **AddUserAddresses** - (IN/OUT) - boolean - add recipients of locally sent messages to the autocomplete address list
 +
 +===V6.5 and later===
 +  * **ServerID** - (IN) - number - ID of SMTP Service in VPOP3
 +  * **ServerName** - (IN) - string - name of SMTP Service in VPOP3
 ====In VPOP3 Enterprise Only==== ====In VPOP3 Enterprise Only====
   * **CheckRBL**   * **CheckRBL**
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   * **RBLRejectMessage**   * **RBLRejectMessage**
   * **RBLHeader**   * **RBLHeader**
 +
 +===V7.10 and later===
 +  * **Encryption** - (IN) - boolean - Is the session encrypted
 +  * **EncryptionDetails** - (IN) - string - SSL/TLS version and SSL/TLS cipher being used (if encrypted)
 =====SMTP Server "Start()"===== =====SMTP Server "Start()"=====
 ''Start()'' ''Start()''
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 This function should return the text to return to the client (return the value of the <current response> parameter to return VPOP3's normal response) This function should return the text to return to the client (return the value of the <current response> parameter to return VPOP3's normal response)
 =====DoMAILFROM()===== =====DoMAILFROM()=====
-DoMAILFROM("<data>", "<mailfrom>", <parameters>)+DoMAILFROM("<data>", "<mailfrom>", <parameters>, "<SPF Result>", "<Auth Sender>")
  
 This function is called by VPOP3 when it receives a valid //MAIL FROM// command This function is called by VPOP3 when it receives a valid //MAIL FROM// command
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 The **<data>** is the raw data after the //MAIL FROM:// command\\ The **<data>** is the raw data after the //MAIL FROM:// command\\
 The **<mailfrom>** is the address after the //MAIL FROM:// command\\ The **<mailfrom>** is the address after the //MAIL FROM:// command\\
-The **<parameters>** is a table of parameters to the //MAIL FROM:// command (if any) with the table entry key being the parameter name and the table entry value being the parameter value+The **<parameters>** is a table of parameters to the //MAIL FROM:// command (if any) with the table entry key being the parameter name and the table entry value being the parameter value\\ 
 +The **<SPF Result>** is the result (pass, fail, softfail, etc) of the SPF check (if any) on the connection (in v5 and later).
  
 This function should return **<new parameters>, <SMTP Result string>** This function should return **<new parameters>, <SMTP Result string>**
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     * Reason string - text string to use if a reason is needed for the action     * Reason string - text string to use if a reason is needed for the action
     * Recipients table - table containing new/replacement recipients for the message     * Recipients table - table containing new/replacement recipients for the message
-    * HeaderModifiers table - list of message header modifications to make+    * HeaderModifiers table - list of message header modifications to make - each entry is the full header line (eg "From: <user@company.com>")
   * <message MIME structure> is a table with one or more of the following entries   * <message MIME structure> is a table with one or more of the following entries
     * Path string - the IMAP style path to the message section     * Path string - the IMAP style path to the message section
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 This function should return <new actions table>, <results string> This function should return <new actions table>, <results string>
  
-In this function the VPOP3 ProcessMessage helper functions can be used.+(In version 7.0 and later, the returned 'results string' is ignored) 
 + 
 +In this function the [[lua_scripting#only_in_pop3cltlua_and_smtpsvrlua_processmessage_function|VPOP3 ProcessMessage helper functions]] can be used.
 =====CheckRecipients()===== =====CheckRecipients()=====
-''CheckRecipients(<Recipient List>, <To Recipients>, <Cc Recipients>, <Bcc Recipients>, "<Authenticated Sender>", "<Sender Address>", "Subject", <locally sent>, <message size>)"+''CheckRecipients(<Recipient List>, <To Recipients>, <Cc Recipients>, <Bcc Recipients>, "<Sender IP Address>", "<Authenticated Sender>", "<Sender Address>", "Subject", <locally sent>, <message size>''
  
 This function is called after the entire message has been received (so the message headers can be parsed by VPOP3) and allows a script to check that the recipients, and recipient types (eg Bcc) are allowed for this message This function is called after the entire message has been received (so the message headers can be parsed by VPOP3) and allows a script to check that the recipients, and recipient types (eg Bcc) are allowed for this message
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   * Cc Recipients  - table containing a list of the recipient email addresses parsed from the Cc header field   * Cc Recipients  - table containing a list of the recipient email addresses parsed from the Cc header field
   * Bcc Recipients  - table containing a list of the Bcc recipient email addresses. (This is calculated as taking the recipient list, and removing any entries from the To or Cc header fields)   * Bcc Recipients  - table containing a list of the Bcc recipient email addresses. (This is calculated as taking the recipient list, and removing any entries from the To or Cc header fields)
 +  * Sender IP Address - string containing the IP address of the sender
   * Authenticated Sender - string containing the authenticated user name of the sender (if any)   * Authenticated Sender - string containing the authenticated user name of the sender (if any)
   * Sender Address - string containing the email address of the sender   * Sender Address - string containing the email address of the sender
reference/lua_smtp_server_script.1370247741.txt.gz · Last modified: 2018/11/14 10:44 (external edit)

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